Home / 4,249.85-6,374.79-1,328.40

Finding the Fourth Proportional to 4,249.85, 6,374.79 and 1,328.40

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Solution

The fourth proportional to 4,249.85, 6,374.79 and 1,328.40 is: 1,992.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,249.85 : 6,374.79 = 1,328.40 : x
  2. Step 2: Convert to fraction form
    4,249.85/6,374.79 = 1,328.40/x
  3. Step 3: Cross multiply
    4,249.85x = 6,374.79 × 1,328.40
  4. Step 4: Simplify right side
    4,249.85x = 8,468,271.04
  5. Step 5: Solve for x
    x = 8,468,271.04/4,249.85
  6. Step 6: Final answer
    x = 1,992.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.